-Taito: Not sure what dip 3 does yet, but dip 4 brings the game's test menu up on boot.
-Video System: Dip 3 brings up the game's test menu on boot, dip 4 purges nvram completely and prevents further saving (the test menu notes status of this at the bottom).

I imagine every brand uses one of them for game test menus.

edit: Sorry about that, for some reason I completely missed the DIP/Input category.

Steps To Reproduce

Additional Information

Flags

Noted in Source

Regression Version

Affected Sets / Systems

taitofx1, vspsx

Attached Files

Relationships

There are no relationsihp linked to this issue.

Notes

1

No.12323

Osso

Developer

Jan 4, 2016, 08:25

Thanks for the report! At line 2692 of drivers/zn.c there's a note about this: PORT_DIPUNKNOWN_DIPLOC( 0x08, 0x08, "S551:4" ) // game testmode in some games
So it probably should be researched for every game and eventually correctly identified/differentiated in the source.